[INFO] crate beep 0.2.1 is already in cache
[INFO] extracting crate beep 0.2.1 into work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/reg/beep/0.2.1
[INFO] extracting crate beep 0.2.1 into work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/beep/0.2.1
[INFO] validating manifest of beep-0.2.1 on toolchain master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of beep-0.2.1 on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing beep-0.2.1
[INFO] finished frobbing beep-0.2.1
[INFO] frobbed toml for beep-0.2.1 written to work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/reg/beep/0.2.1/Cargo.toml
[INFO] started frobbing beep-0.2.1
[INFO] finished frobbing beep-0.2.1
[INFO] frobbed toml for beep-0.2.1 written to work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/beep/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking beep-0.2.1 against master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980 for pr-56896
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56896/worker-6/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/reg/beep/0.2.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9199d3740863cc69401ae43a408ef34504da1e102afafab74baedb474ffbcb93
[INFO] running `"docker" "start" "-a" "9199d3740863cc69401ae43a408ef34504da1e102afafab74baedb474ffbcb93"`
[INFO] [stderr]     Checking beep v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `F`
[INFO] [stderr]   --> examples/song.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 |   let F = Hertz::new(2673.0f64);
[INFO] [stderr]    |       ^ help: consider using `_F` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `C` should have a snake case name such as `c`
[INFO] [stderr]   --> examples/song.rs:10:7
[INFO] [stderr]    |
[INFO] [stderr] 10 |   let C = Hertz::new(2093.0f64);
[INFO] [stderr]    |       ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `D` should have a snake case name such as `d`
[INFO] [stderr]   --> examples/song.rs:11:7
[INFO] [stderr]    |
[INFO] [stderr] 11 |   let D = Hertz::new(2349.0f64);
[INFO] [stderr]    |       ^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `E` should have a snake case name such as `e`
[INFO] [stderr]   --> examples/song.rs:12:7
[INFO] [stderr]    |
[INFO] [stderr] 12 |   let E = Hertz::new(2673.0f64);
[INFO] [stderr]    |       ^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `F` should have a snake case name such as `f`
[INFO] [stderr]   --> examples/song.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 |   let F = Hertz::new(2673.0f64);
[INFO] [stderr]    |       ^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `G` should have a snake case name such as `g`
[INFO] [stderr]   --> examples/song.rs:14:7
[INFO] [stderr]    |
[INFO] [stderr] 14 |   let G = Hertz::new(3136.0f64);
[INFO] [stderr]    |       ^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "9199d3740863cc69401ae43a408ef34504da1e102afafab74baedb474ffbcb93"`
[INFO] running `"docker" "rm" "-f" "9199d3740863cc69401ae43a408ef34504da1e102afafab74baedb474ffbcb93"`
[INFO] [stdout] 9199d3740863cc69401ae43a408ef34504da1e102afafab74baedb474ffbcb93